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Local wavelet correlation: application to timing analysis of multi-satellite CLUSTER data
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SYSNO ASEP 0432141 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Local wavelet correlation: application to timing analysis of multi-satellite CLUSTER data Tvůrce(i) Souček, Jan (UFA-U) RID, ORCID
Dudok de Wit, T. (FR)
Dunlop, M. (GB)
Decreau, P. (FR)Zdroj.dok. Annales Geophysicae. - : Copernicus - ISSN 0992-7689
Roč. 22, č. 12 (2004), s. 4185-4196Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova radio science (signal processing) ; space plasma physics (discontinuities) ; instruments and techniques Vědní obor RIV DG - Vědy o atmosféře, meteorologie CEP GA205/01/1064 GA ČR - Grantová agentura ČR CEZ AV0Z3042911 - UFA-U, BC-A UT WOS 000226831100015 DOI 10.5194/angeo-22-4185-2004 Anotace Multi-spacecraft space observations, such as those of CLUSTER, can be used to infer information about local plasma structures by exploiting the timing differences between subsequent encounters of these structures by individual satellites. We introduce a novel wavelet-based technique, the Local Wavelet Correlation (LWC), which allows one to match the corresponding signatures of large-scale structures in the data from multiple spacecraft and determine the relative time shifts between the crossings. The LWC is especially suitable for analysis of strongly non-stationary time series, where it enables one to estimate the time lags in a more robust and systematic way than ordinary cross-correlation techniques. The technique, together with its properties and some examples of its application to timing analysis of bow shock and magnetopause crossing observed by CLUSTER, are presented. We also compare the performance and reliability of the technique with classical discontinuity analysis methods. Pracoviště Ústav fyziky atmosféry Kontakt Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Rok sběru 2015
Počet záznamů: 1